Ivoclar Vivadent Ag

Retarus Gmbh

Jenabatteries Gmbh

Friedrich-Schiller-Universitaet Jena

Martin Hager

Ulrich Sigmar Schubert

Norbert Moszner

Michael Grauvogl

Peter Burtscher

Urs Karl Fischer

Tobias Janoschka

Bobby Happ

Benedict Sandmann

Thomas Hirt

Bernhard Häupler

Jan Winsberg

Norbert Martin

A redox flow battery for storing electrical energy is described, comprising a reaction cell with two electrode chambers for catholyte and anolyte, each of which is connected to at least one liquid reservoir, the electrode chambers being separated by a membrane, being equipped with electrodes, and each being filled with electrolyte solutions which contain redox-active components dissolved or dispersed in an aqueous electrolyte solvent, as well as conducting salts dissolved therein and possibly further additives. A second embodiment relates to a redox flow battery for storing electrical energy, comprising a reaction cell with an electrode chamber for an electrolyte solution, which is connected to at least one liquid reservoir, the electrode chamber being equipped with a cathode and an anode, and being filled with electrolyte solution which contains redox-active components dissolved or dispersed in an aqueous electrolyte solvent, as well as conductive salts dissolved therein and possibly further additives. The redox flow cells are characterized in that the at least one liquid reservois is an underground storage means in which temperatures of at least 30° C. prevail, in that the concentration of the salts dissolved in the electrolyte solutions is at least 10% by weight, and in that the catholyte or the electrolyte solution contains selected redox-active and temperature-stable components. In the first embodiment, the anolyte contains a water-soluble redox-active component and in the second embodiment, the anolyte or the electrolyte solution contains a zinc salt.

Redox flow battery for storing electrical energy in underground storage means, and use thereof

Dental material which contains (a) at least one mono- or multifunctional radically polymerizable monomer, (b) at least one organic halogen compound as initiator for the radical polymerization, (c) at least one transition metal compound as catalyst and (d) at least one reducing agent. The material is characterized by a high storage stability at room temperature and does not have the disadvantages associated with peroxides.

Dental composites with improved storage stability

A redox flow battery is characterized in that the anolyte comprises a zinc salt as redox-active component and preferably a 2.2.6.6-tetramethylpiperidinyloxyl (TEMPO)-based cathode is used.

Hybrid flow battery for storing electrical energy and use thereof

A method of detecting malicious electronic messages transmitted from at least one message sending device to at least one message receiving device includes: generating at least one signature for an electronic message; storing the generated signature in a data storage unit; determining whether the electronic message is malicious; if the electronic message is determined to be malicious, determining on the basis of the generated signature, whether electronic messages comparable to the determined malicious message were classified as non-malicious and transmitted to the message receiving device in the past; and if it is determined that electronic messages comparable to the determined malicious message were classified as non-malicious and transmitted to the message receiving device in the past, notifying the message receiving device about a potential threat. Also disclosed are a messaging server and a messaging system implementing the above described method.

Technique for detecting malicious electronic messages

The disclosure relates to a method of detecting suspicious electronic messages. The method is performed in a messaging server which is in communication with a plurality of message senders and a plurality of message receivers, and comprises the steps of: receiving electronic messages sent from the plurality of message senders to at least one message receiver; extracting from each received message at least one message sender feature and at least one message content feature; recording the extracted message sender features and message content features in a database; determining, on the basis of the message content features recorded in the database, whether a specific content feature that can be associated with a current message has already been recorded in the past; if the specific content feature has already been recorded in the past, determining, on the basis of the message sender features recorded in the database, a number of message senders that can be associated with the specific content feature; and classifying the current message as suspicious if the determined number of message senders that can be associated with the specific content feature exceeds a predetermined threshold value. Also disclosed is a messaging server implementing the above described method.

Technique for detecting suspicious electronic messages

The disclosure relates to a method of transmitting fax messages from at least one fax message sending device to at least one fax message receiving device. The method is implemented in a fax communication device driver. The method comprises the steps of receiving, from a fax server software module, fax data associated with a fax message to be transmitted from a fax message sending device to a fax message receiving device; deciding, on the basis of at least one predetermined routing rule, whether to route the fax data to the fax communication device or to the cloud provider; and based on a decision result, selectively transmitting the fax data to the fax communication device or to the cloud provider for transmission to the fax message receiving device.

Method for transmitting fax messages from a fax message sending device to a fax message receiving device

It was an object of the invention to provide, by use of new materials and membranes and with very little outlay, an inexpensive and long-lived redox flow cell which even in the event of a possible serious accident brings about little environmental pollution by its redox-active compounds. According to the invention, high molecular weight compounds such as redox-active polymers or oligomers are provided as redox-active components and a size-exclusion membrane () is provided as membrane for the separation of the high molecular weight redox-active components.

Redox flow cell comprising high molecular weight compounds as redox pair and semipermeable membrane for storage of electrical energy

The invention relates to a dental restorative material on the basis of at least one compound of one of the Formulae  The invention also relates to the use of the dental restorative materials according to the invention for preparing dental composites, preferably composite blanks, which are suitable in particular for mechanical processing by means of computer-aided processing techniques such as milling and grinding processes, and which are suitable above all for preparing dental restoration materials such as inlays, onlays, crowns, bridges or veneering materials.

Dental restorative materials based on polymerizable azides and alkynes

The invention relates to a dental restorative material on the basis of at least one compound of Formula IA-[X-Q-(Y-CG)]&#x2003;&#x2003; Formula I,wherein CG represents in each case independently an azide group Nor an alkyne group selected from the group consisting of &#x2014;CRR&#x2014;C&#x2261;CH, with the proviso that the dental restorative material comprises at least one compound of Formula I comprising an azide group and at least one compound of Formula I comprising an alkyne group. The invention also relates to the use of the dental restorative materials according to the invention for preparing dental composites, preferably composite blanks, which are suitable in particular for mechanical processing by means of computer-aided processing techniques such as milling and grinding processes, and which are suitable above all for preparing dental restoration materials such as inlays, onlays, crowns, bridges or veneering materials.

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Jena, Germany

Martin Hager